Alamo Heights, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alamo Heights, a city in Bexar County, Texas.
Today
76°F
Sunny
Sunny, with a high near 76. Northeast wind 0 to 5 mph.
7-day forecast for Alamo Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Sunny | 0 to 5 mph NE | 0% |
| Tonight | 55°F | Clear | 0 to 5 mph E | 0% |
| Thursday | 79°F | Sunny | 0 to 5 mph SE | 0% |
| Thursday Night | 59°F | Partly Cloudy | 0 to 20 mph NE | 2% |
| Friday | 74°F | Sunny | 5 to 15 mph N | 0% |
| Friday Night | 55°F | Partly Cloudy | 5 to 15 mph NNE | 0% |
| Saturday | 69°F | Partly Sunny then Slight Chance Rain Showers | 10 to 15 mph NNE | 18% |
| Saturday Night | 53°F | Chance Rain Showers | 5 to 15 mph NNE | 29% |
| Sunday | 67°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph NNE | 15% |
| Sunday Night | 50°F | Partly Cloudy | 0 to 5 mph N | 5% |
| Monday | 69°F | Sunny | 0 to 5 mph ENE | 5% |
| Monday Night | 50°F | Partly Cloudy | 0 to 5 mph ESE | 3% |
| Tuesday | 71°F | Mostly Sunny | 0 to 5 mph ESE | 5% |
| Tuesday Night | 53°F | Slight Chance Rain Showers then Partly Cloudy | 0 mph | 15% |
Forecast source: National Weather Service (api.weather.gov) for Alamo Heights (29.483, -98.468). Updated through the day.
Growing snapshot for Alamo Heights
Last spring frost
Feb 25
First fall frost
Nov 28
Growing season
277 days
Hardiness zone
9a
More local growing data for Alamo Heights: nearby ZIP 78209 weather · frost dates · planting calendar · Texas frost dates
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Windcrest
Climate data from the nearest NOAA station, San Antonio Incarnate Word, Tx (1.6 mi from Alamo Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.